running script causes freeze up of page

Can anyone tell me why my computer constantly freezes every time I am on wordpress, window internet explorer says their is a script running on this page that if left running will cause your computer to become unresponsive, and then my computer freezes up for long periods of time. I click stop script and in a few minutes it starts all over again this is extremely annoying and takes for ever to get anything done.Thanks to any responses

Is this the blog in question> http://tonyrmarch.wordpress.com
If not then please post the complete clickable URL for the blog to which you refer starting with http://
What is your operating system?
Which browser and version of it are your using?
Have you tried this? http://en.support.wordpress.com/browser-issues/
Have you tried another browser? If so which browser and version of it did you try and what was the result?